Using ground-based GPS to characterize atmospheric turbulence

Publication type

Journal Article

Research Area

Tectonics

Research Team

Geodesy Group

Abstract

A new method for measuring and studying atmospheric turbulence is presented. The method uses data from a local network of GPS receivers. The GPS data are processed in a way that assures that the estimated zenith total delays (ZTD) contain the effects of atmospheric turbulence present in the GPS observations. The turbulence is characterized using the spatial structure function for the atmospheric zenith total delay. The structure function is modeled by an expression with unknown parameters which contains information about the turbulence. The unknown parameters are solved by a fit to the observed ZTD variations. We apply the method to GPS data from the Yucca Mountain network, Nevada, USA. The results show that the magnitude of the turbulent variations in that region have a strong seasonal dependence, with much larger variations in summer compared to winter. Citation: Nilsson, T., J. L. Davis, and E. M. Hill (2009), Using ground-based GPS to characterize atmospheric turbulence, Geophys. Res. Lett., 36, L16807, doi: 10.1029/2009GL040090.

Publication Details

Journal

Geophysical Research Letters

Volume

36

Date Published

Aug

Identifiers

ISBN Number

0094-8276

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